Tracking ICG fluorescence in cancerous vs healthy tissue

Note the slower uptake in regions 1 - 3, shown in white, which are located on the tumor, and compare to the uptake on regions 4 - 6, which are placed on healthy tissue. Note that the green color is a false-color overlay, the intensity of the green is proportional to the intensity of the image captured by the near-infrared (NIR) camera.